If any of you are sashimi/sushi enthusiasts, and you live near a Mitsuwa supermarket, I highly recommend giving it a try. My wife and I were a little skeptical, though I'd read good things, but we picked up hamachi, negitoro, kanpachi, some gari, and some seaweed salad.
The results are below:
Quite tasty, the fish was not fishy at all, and the cost of all the ingredients (except the shoyu and the rice) was $21.88.